Chromic oxide refractory material and preparation method thereof

A refractory material and chromium oxide technology, which is applied in the field of chromium oxide refractory materials and its preparation, can solve the problems of reducing the service life of kilns, difficulty in drawing operations, and increasing production costs, so as to improve thermal shock resistance, improve drawing quality and Production efficiency and the effect of reducing investment costs

Active Publication Date: 2016-12-07
广州市石基耐火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The equipment for glass production is a glass furnace. The main material of the existing glass melting furnace is refractory material. The refractory material is subject to high temperature, rapid temperature change, physical and chemical erosion and mechanical erosion of flame, powder and glass liquid for a long time in the furnace. Therefore, as time goes by, it will be gradually peeled off and melted into the molten glass, causing defects such as bubbles and refractory stones to the molten glass, and in severe cases, it will make the drawing operation difficult
When the refractory material is eroded to a certain extent, the kiln is forced to stop production for cold repair, which affects production efficiency, increases production costs, and reduces the service life of the kiln

Method used

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  • Chromic oxide refractory material and preparation method thereof
  • Chromic oxide refractory material and preparation method thereof
  • Chromic oxide refractory material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The chromium oxide refractory material of the present invention, its raw material component comprises the following components according to weight ratio:

[0031]

[0032] Among them, the particle size of chromium oxide powder in the sintered chromium oxide synthetic material is less than 10 μm; the particle size of silicon oxide powder is less than 3 μm; the particle size of titanium oxide powder is less than 10 μm.

[0033] The preparation method of above-mentioned chromium oxide refractory material, comprises the following steps:

[0034] S1: Take 85-95% of chromium oxide powder, 0.2-3% of silicon oxide powder and 2-6% of titanium oxide powder according to the weight ratio. The sintered chromium oxide synthetic pellets, stand-by;

[0035] S2: According to the weight ratio, 85-95% of chromium oxide, 1-6% of zirconia content, 0.5-3% of silicon oxide content and 2-6% of titanium oxide content are taken, and the sum of the quantities of each component is equal to 100...

Embodiment 2

[0039] The chromium oxide refractory material of the present invention, its raw material components comprise the following components according to the weight ratio:

[0040]

[0041] Among them, the particle size of chromium oxide powder in the sintered chromium oxide synthetic material is less than 10 μm; the particle size of silicon oxide powder is less than 3 μm; the particle size of titanium oxide powder is less than 10 μm.

[0042] The preparation method of the above-mentioned chromium oxide refractory material is consistent with Example 1. Among them, the high temperature firing temperature is 1625°C. .

Embodiment 3

[0044] The chromium oxide refractory material of the present invention, its raw material components comprise the following components according to the weight ratio:

[0045]

[0046] Among them, the particle size of chromium oxide powder in the sintered chromium oxide synthetic material is less than 10 μm; the particle size of silicon oxide powder is less than 3 μm; the particle size of titanium oxide powder is less than 10 μm.

[0047] The preparation method of the above-mentioned chromium oxide refractory material is consistent with Example 1. Among them, the high temperature firing temperature is 1620°C.

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Abstract

The invention discloses a chromic oxide refractory material which is prepared from aggregate, a substrate material and an adhesive. The aggregate is a sintered chromic oxide synthesized particle material with the particle size of 0-3mm; the substrate material comprises titanium-free zirconite micropowder and mixed powder with the particle size of less than 20 mu m; the chromic oxide content in the sintered chromic oxide synthesized particle material is greater than or equal to 85%; the zirconium silicate content in the titanium-free zirconite micropowder is greater than 99%; and the mixed powder comprises chromic oxide, zirconium oxide, silicon oxide or titanium oxide powder. The chromic oxide refractory material cannot be stripped and molten into the glass metal in the use process, and meanwhile, the chromic oxide has very high glass corrosion resistance, and the corrosion resistance of the product is further enhanced.

Description

technical field [0001] The invention relates to the field of synthesis of refractory materials, in particular to a chromium oxide refractory material and a preparation method thereof. Background technique [0002] The equipment for glass production is a glass furnace. The main material of the existing glass melting furnace is refractory material. The refractory material is subject to high temperature, rapid temperature change, physical and chemical erosion and mechanical erosion of flame, powder and glass liquid for a long time in the furnace. Therefore, with the passage of time, it will be gradually peeled off and melted into the molten glass, and cause defects such as bubbles and refractory stones to the molten glass, which will make the drawing operation difficult in severe cases. When the refractory material is eroded to a certain extent, the kiln will be forced to stop production for cold repair, which will affect the production efficiency, increase the production cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 涂淑进何承龙萧子良张国高刘华利李盛德
Owner 广州市石基耐火材料厂
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